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Posterior midventricular rupture after mitral valve replacement
Abstract:
Posterior midventricular rupture occurred in 3 patients after insertion of a mitral prosthesis. Iatrogenic surgical trauma was not implicated. There were five clinical factors common to each case: a woman with mitral stenosis; a left ventricle of relatively normal size; the use of intermitent cold cardioplegia; the insertion of a porcine heterograft valve; and transient postoperative hypertension. Rupture in such cases may be caused by hyperdynamic left ventricular contraction against the strut of the prosthesis. Causes of ventricular perforation are discussed.
Insights
Posterior midventricular rupture after mitral prosthesis insertion is rare but serious. Key factors include mitral stenosis, normal left ventricle size, cold cardioplegia, porcine valves, and hypertension, potentially causing hyperdynamic contraction against the prosthesis.
Area of Science:
- Cardiology
- Cardiac Surgery
- Pathology
Background:
- Mitral prosthesis insertion is a common cardiac surgical procedure.
- Ventricular rupture is a rare but severe complication following cardiac surgery.
- Understanding risk factors for ventricular rupture is crucial for patient safety.